appearently two of these projects were realised
This isn't the same bird i posted, but they are related. Designed by Nicholas Roland Payen, the above pictured Pa.22 was a kind of proof of concept machine, to demonstrate that the 'flechair' configuration will work.
What is interesting about it is that originally it was planned to be powered by a pulsejet (yes, in 1940!) but this did not materialize so it was finished with a conventional piston engine (and a very small one - just 180 HP). As you see, it was captured by Germans and extensively test-flown.
We may only guess how much it did or didn't inspire German designers such as Lippisch or the Horten bros.
The fighter protorype Pa.112C.1 was built in the form of a full scale mock-up only, the first prototype had been in initial stages of construction when France surrendered and it was destroyed to prevent capture. It was supposed to be powered by two engines (again relatively small ones) driving contra-rotating props and carried 4 machine guns.
Payen also proposed a similarly configured design to the Japanese in 1938, the Mitsubishi-Payen Pa.400 for the role of a carrier-borne torpedo bomber but it wasn't seriously considered by the IJN authorities probably too scared by the outlandish concept.